About Payment 
 Shipping & Cost
 Battery SDS
 Battery Terminology
 Battery Knowledge
Privacy Policy
 Export restrictions


Shopper Award
Security Verified Seal

Custom Li-Ion 18650 Battery: 3.635V 3500mah (12.7Wh, 2A rate, INR18650 MJ1) - UN38.3 Passed

Your Price: From $26.95 to $29.95
Lead Time: min. 5 to 10 Business Days!

Product Options



  • Custom 3.635V 3500mAh Li-Ion Battery pack is made of 1x LG INR18650 MJ1 Rechargeable Cell
  • Wrapped with white PVC
Voltage Nominal: 3.635V; Charge Cut off: 4.2V; Discharge Cut off: 2.5V
Capacity Nominal: 3500mAh; minimum: 3400mAh
Terminals PR-CU-R648:   4" 24AWG JST-PH connector (Pin 1 = positive)
PR-CU-R648-V1:  4" 24AWG Pico-Lock 5040510201 connector (Pin 1 = positive)
  • 1x PCB installed with the  battery pack and protects the battery from
    • Overcharge  / Overdischarge  / Over drain / Short circuits
  • 1x 2A Polyswitch
Charge Current Standard: 1700mA / 0.5C;  Maximum: 1450mA
Discharge Current Standard: 680mA / 0.2C;  Maximum: 2000mA, limited by PCB and polyswitch
Dimensions(DxH) 0.75" x 2.75" (20mm x 70mm)
Weight 50g  ( 1.6oz ) 
Temperature Charge: 0 to 45°C
Discharge: -20 to 60°C
Storage: 1 month: -20 to 60°C; 3 month: -20 to 45°C; 1 Year: -20 to 20°C


  • Li-Ion battery may explode if misused.  We are not responsible for any damages or losses caused by misuse (including but not limited to: mis-charging, mis-discharging, any changes of this battery pack, mis-assembling batterypacks).
  • Always charge battery with attention. Battery pack should be placed in a fireproof place to avoid any accidents.
  • Please don't use the battery modules to make series connection or parallel connection withmore than 2 packs, otherwise battery service life may be reduced.
  • For safety warning please see the link here
  • California residents: Warning: Cancer and Reproductive Harm - See Prop 65 Warnings

Related Products

  • Smart Charger: please choose our 1.8A smart Li-Ion battery charger
  • Need connetors to DIY?  Please order here.
  • Fire Retardant Bag: 295mmx230mmx75mm --- Reduce the chance of damage if caught fire
    • This Fire Retardant Bag (Li-Ion Safer Bag) is intended to reduce the chance of damage in the event of catching fire.
    • Must locate & seal the battery pack in the bag  while charging / leaving without any attention

Related Products

Product Reviews

(0 Ratings, 0 Reviews)
What to consider when designing Lithium Batteries?
Bluetooth Technology for Lithium-ion/LiFePO4 Batteries
UN 38.3 Safety Test

We own a national standard UN38.3 testing lab. We can provide UN38.3 test service to our customer.

If you want to set up your own lab, we also provide UN38.3 & IEC62133 equipments and onsite training. Email us for the quote and lead time.
Lithium Battery Shipping Regulation
Recommendations on How to get ≤30% Rated Capacity for Shipping
Thermal Abuse Test for IEC62133
Mailing Lists